CREATE TABLE sources(
    _id INTEGER NOT NULL PRIMARY KEY,
    lang TEXT NOT NULL,
    name TEXT NOT NULL
);

findAll:
SELECT *
FROM sources;

findOne:
SELECT *
FROM sources
WHERE _id = :id;

upsert:
INSERT INTO sources(_id, lang, name)
VALUES (:id, :lang, :name)
ON CONFLICT(_id)
DO UPDATE
SET
    lang = :lang,
    name = :name
WHERE _id = :id;